kubespray 2.24 추가

contrib/terraform/aws/modules/vpc/main.tf

@@ -0,0 +1,137 @@
+resource "aws_vpc" "cluster-vpc" {
+  cidr_block = var.aws_vpc_cidr_block
+
+  #DNS Related Entries
+  enable_dns_support   = true
+  enable_dns_hostnames = true
+
+  tags = merge(var.default_tags, tomap({
+    Name = "kubernetes-${var.aws_cluster_name}-vpc"
+  }))
+}
+
+resource "aws_eip" "cluster-nat-eip" {
+  count = length(var.aws_cidr_subnets_public)
+  vpc   = true
+}
+
+resource "aws_internet_gateway" "cluster-vpc-internetgw" {
+  vpc_id = aws_vpc.cluster-vpc.id
+
+  tags = merge(var.default_tags, tomap({
+    Name = "kubernetes-${var.aws_cluster_name}-internetgw"
+  }))
+}
+
+resource "aws_subnet" "cluster-vpc-subnets-public" {
+  vpc_id            = aws_vpc.cluster-vpc.id
+  count             = length(var.aws_cidr_subnets_public)
+  availability_zone = element(var.aws_avail_zones, count.index % length(var.aws_avail_zones))
+  cidr_block        = element(var.aws_cidr_subnets_public, count.index)
+
+  tags = merge(var.default_tags, tomap({
+    Name = "kubernetes-${var.aws_cluster_name}-${element(var.aws_avail_zones, count.index)}-public"
+    "kubernetes.io/cluster/${var.aws_cluster_name}" = "shared"
+    "kubernetes.io/role/elb" = "1"
+  }))
+}
+
+resource "aws_nat_gateway" "cluster-nat-gateway" {
+  count         = length(var.aws_cidr_subnets_public)
+  allocation_id = element(aws_eip.cluster-nat-eip.*.id, count.index)
+  subnet_id     = element(aws_subnet.cluster-vpc-subnets-public.*.id, count.index)
+}
+
+resource "aws_subnet" "cluster-vpc-subnets-private" {
+  vpc_id            = aws_vpc.cluster-vpc.id
+  count             = length(var.aws_cidr_subnets_private)
+  availability_zone = element(var.aws_avail_zones, count.index % length(var.aws_avail_zones))
+  cidr_block        = element(var.aws_cidr_subnets_private, count.index)
+
+  tags = merge(var.default_tags, tomap({
+    Name = "kubernetes-${var.aws_cluster_name}-${element(var.aws_avail_zones, count.index)}-private"
+    "kubernetes.io/cluster/${var.aws_cluster_name}" = "shared"
+    "kubernetes.io/role/internal-elb" = "1"
+  }))
+}
+
+#Routing in VPC
+
+#TODO: Do we need two routing tables for each subnet for redundancy or is one enough?
+
+resource "aws_route_table" "kubernetes-public" {
+  vpc_id = aws_vpc.cluster-vpc.id
+
+  route {
+    cidr_block = "0.0.0.0/0"
+    gateway_id = aws_internet_gateway.cluster-vpc-internetgw.id
+  }
+
+  tags = merge(var.default_tags, tomap({
+    Name = "kubernetes-${var.aws_cluster_name}-routetable-public"
+  }))
+}
+
+resource "aws_route_table" "kubernetes-private" {
+  count  = length(var.aws_cidr_subnets_private)
+  vpc_id = aws_vpc.cluster-vpc.id
+
+  route {
+    cidr_block     = "0.0.0.0/0"
+    nat_gateway_id = element(aws_nat_gateway.cluster-nat-gateway.*.id, count.index)
+  }
+
+  tags = merge(var.default_tags, tomap({
+    Name = "kubernetes-${var.aws_cluster_name}-routetable-private-${count.index}"
+  }))
+}
+
+resource "aws_route_table_association" "kubernetes-public" {
+  count          = length(var.aws_cidr_subnets_public)
+  subnet_id      = element(aws_subnet.cluster-vpc-subnets-public.*.id, count.index)
+  route_table_id = aws_route_table.kubernetes-public.id
+}
+
+resource "aws_route_table_association" "kubernetes-private" {
+  count          = length(var.aws_cidr_subnets_private)
+  subnet_id      = element(aws_subnet.cluster-vpc-subnets-private.*.id, count.index)
+  route_table_id = element(aws_route_table.kubernetes-private.*.id, count.index)
+}
+
+#Kubernetes Security Groups
+
+resource "aws_security_group" "kubernetes" {
+  name   = "kubernetes-${var.aws_cluster_name}-securitygroup"
+  vpc_id = aws_vpc.cluster-vpc.id
+
+  tags = merge(var.default_tags, tomap({
+    Name = "kubernetes-${var.aws_cluster_name}-securitygroup"
+  }))
+}
+
+resource "aws_security_group_rule" "allow-all-ingress" {
+  type              = "ingress"
+  from_port         = 0
+  to_port           = 65535
+  protocol          = "-1"
+  cidr_blocks       = [var.aws_vpc_cidr_block]
+  security_group_id = aws_security_group.kubernetes.id
+}
+
+resource "aws_security_group_rule" "allow-all-egress" {
+  type              = "egress"
+  from_port         = 0
+  to_port           = 65535
+  protocol          = "-1"
+  cidr_blocks       = ["0.0.0.0/0"]
+  security_group_id = aws_security_group.kubernetes.id
+}
+
+resource "aws_security_group_rule" "allow-ssh-connections" {
+  type              = "ingress"
+  from_port         = 22
+  to_port           = 22
+  protocol          = "TCP"
+  cidr_blocks       = ["0.0.0.0/0"]
+  security_group_id = aws_security_group.kubernetes.id
+}

contrib/terraform/aws/modules/vpc/outputs.tf

@@ -0,0 +1,19 @@
+output "aws_vpc_id" {
+  value = aws_vpc.cluster-vpc.id
+}
+
+output "aws_subnet_ids_private" {
+  value = aws_subnet.cluster-vpc-subnets-private.*.id
+}
+
+output "aws_subnet_ids_public" {
+  value = aws_subnet.cluster-vpc-subnets-public.*.id
+}
+
+output "aws_security_group" {
+  value = aws_security_group.kubernetes.*.id
+}
+
+output "default_tags" {
+  value = var.default_tags
+}

contrib/terraform/aws/modules/vpc/variables.tf

@@ -0,0 +1,27 @@
+variable "aws_vpc_cidr_block" {
+  description = "CIDR Blocks for AWS VPC"
+}
+
+variable "aws_cluster_name" {
+  description = "Name of Cluster"
+}
+
+variable "aws_avail_zones" {
+  description = "AWS Availability Zones Used"
+  type        = list(string)
+}
+
+variable "aws_cidr_subnets_private" {
+  description = "CIDR Blocks for private subnets in Availability zones"
+  type        = list(string)
+}
+
+variable "aws_cidr_subnets_public" {
+  description = "CIDR Blocks for public subnets in Availability zones"
+  type        = list(string)
+}
+
+variable "default_tags" {
+  description = "Default tags for all resources"
+  type        = map(string)
+}